Core i7-3820 is a desktop processor from Intel released on 13 February 2012, and it is in cpu.details.production-unknown now. It belongs to Core i7 family and has a Sandy Bridge-E architecture. This processor is built on Intel Socket 2011, and uses Gen 3 PCI express connection. 32 nm process is used in production.
Processor has 4 cores and 8 threads, with the base frequency of 3.6 GHz. It has DDR3 Quad-channel memory support. As for the cache, it supports L1 64K (per core), L2 256K (per core) and L3 10MB (shared).